Warper



(No Model.) l

T. C. ENTWISTLE.

Warper. No. 242,617. Patented June 7.1881.

illllilllllllllllilIIIIIHHI|||| tlNrre STATES PATENT Erice.

THOMAS C. ENTVISTLE, OF MILFORD, MASSACHUSETTS, ASSIGNOR TO FHENIX MACHINE COMPANY, OF MASSACHUSETTS.

WARPER.

SPECIFICATION forming part of Letters Patent No. 242,617, dated June 7, 1881.

Application tiled February 2l, 1881.

To all whom it may concern Be it known that I, Tuoi/ms C. ENrwisrLE, of Milford, in the county of Worcester and Commonwealth of Massachusetts, have invented certain new'and useful Improvements in VVarpers, of which the following` is a specitieation.

My invention is an improvement in slow-motions for warping-machines, the objectbeing to impart a slow motion to awarping-machine, in order to preventthe breakage of the th reads when the machine is being started, and also to enable the operator to turn the beam more readily to find' the broken threads, and to bring up the C falling77 roll that is used to take up the slack from the spools when the machine is suddenly stopped in the usual way.

In warping-machines as heretofore made the slow-motion has been so constructed and organized that when the machine driven by the fast pulley is in operation in the usual way, not only has the slow-motion, as a whole or entirety, been in motion, but the several parts ormechanieal instrumentalities have also been caused each to have its own motion, the result being that of producing great wear upon the parts forming the slow-motion. It is my object to remedy this defect, so organizing the slow-motion mechanism that while the parts shall have their own proper motion when transmitting the desired slow movement to the warper-eylinder, the said mechanism shall, when the cylinder is driven from the usual fast or driving pulley, or at normal speed, have no motion exceptingas an entirety-that is to say, none of the parts constituting said mechanism shall in that case have movement relatively to one another; and to this end I lcombine with the slow-motion mechanism the usual fast or drivin g pulley or wheel and the shaft on which said parts are mounted, means whereby, whenever power is applied to the fast pulley or wheel through the intermediary of the slowmotion mechanism, the shaft may be held stationary, so as to constitute at this time apoint ot' support for the slow-motion mechanism. These means I prefer to so arrange that they will automatically lock the shaft when power is transmitted through the slow-motion mechanism, and unlock said shaft or allow the same (No model.)

to run free when power is applied directly to the fast pulley or wheel; and for this purpose I nd that the simplest and most eeetive means, on the whole, are a pawl on the frame and a ratchet on the shaft, operating together substantially as hereinafter described.

The nature of' my invention, and the manner in which the same is or may be carried into effect, will be understood by reference to the accompanying drawings, in which Figure l is a sectional elevation ofso much of a warping-machine as is needed for the purpose of explaining my invention, the slowmotion and contiguous devices being shown in vertical section, the plane of section passing through the longitudinal center ot' the shaft on which the devices are mounted. Fig. 2 is a section on line x x, Fig. l, looking in the direction of the arrow l. Fig. 3 is asection on line yy, Fig. 1, looking in the direction of the arrow 2.

A is a shaft extending through the pulleys B C D, the frame, and the box It, in thelatter of which it has its bearing and support. B is the loose pulley. Cv is the intermediate or slow-motion pulley. D is the fast or driving pulley. All lthree pulleys areloose on the shaft.

In the drivin g-pulley D is an internal gear, T, operating in which is the gear M, which receives its motion from the intermediate gear L, driven by the gear K, which is attached to the pulley C. The gears L and M revolve on studs fastened to the counterweighted crosshead F, which is mounted on and fastened tight to the shaft A. The pawl or dog N is hinged to the frame and operates in connection with the ratchet G, fast on shaft A. The gear O is fastened to and operates the shaft upon which is fixed the warper-cylinder I. The gear S is on the hub of the fast pulley D and imparts motion to the gear O.

When it is desired to start the machine the beltis shifted from pulley B to the slow-motion pulley C, which gives motion to the piniongear K. The motion ot' the latter, through 95 the intermediary of the pinions Ii and M and internal gear, T, is transmitted to pulley D. The motion thus transmitted is a slow motion, and the intermediaries are enabled thus to act by reason of the pawl or dog N, which falls IOO in and engages the ratchet G. The tendency ofthe action of the gear K is to revolve the cross-head F and the shaft A, on which said cross-head is fastened, in the direction indicated by the arrow on the ratchet in Fig. 3; but this tendency is neutralized by the dog N, which brings up against the tooth or shoulder on the ratchet, and thus holds the shaft stationary. As soon, however, as the belt is shifted from the slow-motion pulley to the fast pulley D, power is applied to that pulley directly, and notthrough the slow-motion intermediary. The result is that the pulley D carries around the slow-motion mechanism, the shaft A revolving in a direction which permits the dog or pawl to ride oyer the ratchet. The slow-motion mechanism-shaft A includednow revolves as an entirety with the fast-motion pulley; but the individual parts of that mechanism are at rest with respect to one another.

rllhe dog or stop N, as will be seen, is always in position, and '1s essentially automatic in action.

Having described my invention, what l claim, and desire to secure by Letters Paten t, is as follows:

1. In a slow-motion mechanism for warpingmachines, the combination, with the fast pulley or wheel, the slow-motion pulley or wheel, mechanism for transmitting movement from the slow-1n otion to the fast pulley, and the shaft on which the sameis fastened, of means, substantially as described, whereby, when motion is transmitted from the slow-motion pnlley, said shaft is locked against or prevented from rotary movement, substantially as and for the purposes hereinbefore set forth.

2. The combination, with the fast and the slow-motion pulleys and gears carried by the same, of the cross-head, the movementtransmittiug pinions mounted on the same, the shaft on which said cross-head is fastened, and an automatically-operating detent or locking mechanism, substantially as described, which locks the shaft against rotary movement at the time and in the manner substantially as set forth.

3. The combination, with the fast and the slow-motion pulleys and gears carried by the same, of the cross-head carrying intermediate pinions, the shaft to which said cross-head is fastened, and the pawl or dog and ratchet, the combination being and acting substantially as hereinbefore set forth.

In testimony whereof' l have hereunto set my hand this 16th day of February, 1881.

THOMAS C. ENT\VISTLE.

fitnessesz ALBERT M. MOORE, WILLIAM ED WHITEHEAD. 

